<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style>
			body{
				height: 10000px;
				width: 5000px;
			}
			#adv{
				position: fixed;
				left: center;
				top:200px;
				height: 150px;
				width: 117px;
				overflow: hidden;
				/* border: 1px solid red; */
			}
			#adv #closePic{
				position: absolute;
				right: 0;
				top:0;
				cursor: pointer;
			}
		</style>
		<script>
			window.onscroll=function(){
				let l=(document.documentElement||document.body).scrollLeft;
				let t=(document.documentElement||document.body).scrollTop;
				document.title=l+","+t;
				
			}
		</script>
	</head>
	<body>
		<div id="adv">
			<a href="#"><img src="advpic.jpg"/></a>
			<img src="close.jpg" id="closePic" />
		</div>
	</body>
</html>